Examples of org.ow2.asm.MethodVisitor.visitVarInsn()

org.ow2.asm.MethodVisitor.visitVarInsn()
Visits a local variable instruction. A local variable instruction is an instruction that loads or stores the value of a local variable. @param opcode the opcode of the local variable instruction to be visited.This opcode is either ILOAD, LLOAD, FLOAD, DLOAD, ALOAD, ISTORE, LSTORE, FSTORE, DSTORE, ASTORE or RET. @param var the operand of the instruction to be visited. This operand isthe index of a local variable.

        mv = cw.visitMethod(0, "<init>", "(Lpkg/Outer;)V", null, null);
        mv.visitCode();
        mv.visitVarInsn(ALOAD, 0);
        mv.visitVarInsn(ALOAD, 1);
        mv.visitFieldInsn(PUTFIELD, "pkg/Outer$Inner", "this$0", "Lpkg/Outer;");
        mv.visitVarInsn(ALOAD, 0);
        mv.visitMethodInsn(INVOKESPECIAL, "java/lang/Object", "<init>", "()V");
        mv.visitInsn(RETURN);
        mv.visitMaxs(0, 0);
        mv.visitEnd();

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        cw.visit(V1_1, ACC_PUBLIC, "pkg/JSR1", null, "java/lang/Object", null);


        mv = cw.visitMethod(ACC_PUBLIC, "<init>", "()V", null, null);
        mv.visitCode();
        mv.visitVarInsn(ALOAD, 0);
        mv.visitMethodInsn(INVOKESPECIAL, "java/lang/Object", "<init>", "()V");
        mv.visitInsn(RETURN);
        mv.visitMaxs(0, 0);
        mv.visitEnd();

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        Label l4 = new Label();
        Label l5 = new Label();
        mv.visitTryCatchBlock(l0, l1, l2, null);
        mv.visitTryCatchBlock(l2, l3, l2, null);
        mv.visitLabel(l0);
        mv.visitVarInsn(ALOAD, 0);
        mv.visitVarInsn(ALOAD, 1);
        mv.visitMethodInsn(INVOKEVIRTUAL, "pkg/JSR1", "forwardJSR", "([I)V");
        mv.visitJumpInsn(JSR, l4); // forward JSR, will give forward JSR_W


        // many NOPs will be introduced here by the method resizing test

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        Label l5 = new Label();
        mv.visitTryCatchBlock(l0, l1, l2, null);
        mv.visitTryCatchBlock(l2, l3, l2, null);
        mv.visitLabel(l0);
        mv.visitVarInsn(ALOAD, 0);
        mv.visitVarInsn(ALOAD, 1);
        mv.visitMethodInsn(INVOKEVIRTUAL, "pkg/JSR1", "forwardJSR", "([I)V");
        mv.visitJumpInsn(JSR, l4); // forward JSR, will give forward JSR_W


        // many NOPs will be introduced here by the method resizing test

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        // many NOPs will be introduced here by the method resizing test


        mv.visitLabel(l1);
        mv.visitJumpInsn(GOTO, l5);
        mv.visitLabel(l2);
        mv.visitVarInsn(ASTORE, 2);
        mv.visitJumpInsn(JSR, l4);
        mv.visitLabel(l3);
        mv.visitVarInsn(ALOAD, 2);
        mv.visitInsn(ATHROW);
        mv.visitLabel(l4);

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        mv.visitJumpInsn(GOTO, l5);
        mv.visitLabel(l2);
        mv.visitVarInsn(ASTORE, 2);
        mv.visitJumpInsn(JSR, l4);
        mv.visitLabel(l3);
        mv.visitVarInsn(ALOAD, 2);
        mv.visitInsn(ATHROW);
        mv.visitLabel(l4);
        mv.visitVarInsn(ASTORE, 3);
        mv.visitInsn(DCONST_0);
        mv.visitVarInsn(DSTORE, 4);

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        mv.visitJumpInsn(JSR, l4);
        mv.visitLabel(l3);
        mv.visitVarInsn(ALOAD, 2);
        mv.visitInsn(ATHROW);
        mv.visitLabel(l4);
        mv.visitVarInsn(ASTORE, 3);
        mv.visitInsn(DCONST_0);
        mv.visitVarInsn(DSTORE, 4);
        mv.visitVarInsn(RET, 3);
        mv.visitLabel(l5);
        mv.visitInsn(RETURN);

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        // invisible parameter annotation
        av0 = mv.visitParameterAnnotation(8, "Lpkg/Annotation;", false);
        av0.visitArray("stringArrayValue").visitEnd();
        av0.visitEnd();
        mv.visitCode();
        mv.visitVarInsn(ALOAD, 0);
        mv.visitMethodInsn(INVOKESPECIAL, "java/lang/Object", "<init>", "()V");
        mv.visitInsn(RETURN);
        mv.visitMaxs(0, 0);
        mv.visitEnd();

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        mv.visitVarInsn(ISTORE, 7);
        mv.visitVarInsn(ALOAD, 0);
        mv.visitJumpInsn(IFNONNULL, l0);
        mv.visitInsn(ICONST_0);
        mv.visitVarInsn(ISTORE, 7);
        mv.visitVarInsn(ALOAD, 0);
        // tableswitch
        Label l1 = new Label();
        Label l2 = new Label();
        Label l3 = new Label();
        mv.visitVarInsn(ILOAD, 1);

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        mv.visitVarInsn(ALOAD, 0);
        // tableswitch
        Label l1 = new Label();
        Label l2 = new Label();
        Label l3 = new Label();
        mv.visitVarInsn(ILOAD, 1);
        mv.visitTableSwitchInsn(0, 2, l3/*default*/, l1, l2, l3 );
        mv.visitLabel(l1);
        mv.visitInsn(ICONST_1);
        mv.visitVarInsn(ISTORE, 7);
        mv.visitJumpInsn(GOTO, l3);

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